shape ops work in progress
mostly working on cubic/cubic intersect
git-svn-id: http://skia.googlecode.com/svn/trunk@7266 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/QuadraticUtilities.h b/experimental/Intersection/QuadraticUtilities.h
index 5bc15ea..3230e9b 100644
--- a/experimental/Intersection/QuadraticUtilities.h
+++ b/experimental/Intersection/QuadraticUtilities.h
@@ -4,6 +4,10 @@
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
+
+#if !defined QUADRATIC_UTILITIES_H
+#define QUADRATIC_UTILITIES_H
+
#include "DataTypes.h"
void dxdy_at_t(const Quadratic& , double t, double& x, double& y);
@@ -24,5 +28,7 @@
}
int quadraticRoots(double A, double B, double C, double t[2]);
-
+int quadraticRootsX(const double A, const double B, const double C, double s[2]);
void xy_at_t(const Quadratic& , double t, double& x, double& y);
+
+#endif